Moving a column or row
You can only move one cell at a time using the method described in Moving and copying text from cell to cell; you cannot move a whole column or row. For this reason, you should plan your layout carefully before creating the table. However, you can achieve the same end by inserting a new row or column in the destination position, dragging the contents of each cell in the original row or column across to it, then deleting the original.
You can also copy one or more highlighted rows and paste them as separate tables, rearrange them vertically to form a new sequence and then join them. See Moving and copying tables.